The soil passing the no. 200 sieve was used to conduct a hydrometer test. The results are shown in the table below. What are the amounts of clays and silts in the soil? Time (min)SHAWN153060240900Hydrometerreading(gram/liter)40.034.032.030.027.025.023.021.017.014.0Temperature(C)22.522.522.022.022.021.521.521.520.019.0Correcteddistance offall (cm)8.909.219.9610.2910.9611.1711.4511.9612.4513.10Grainsize (mm)0.03960.02850.02430.02140.01560.01160.00830.00600.00310.0017% Finer byweight82.268.864.259.753.148.443.939.530.022.9

Plot a semi-log graph with Percent finer on y-axis and grain size on x-axis.

Answered: The soil passing the no. 200 sieve was…

The soil passing the no. 200 sieve was used to conduct a hydrometer test. The results are shown in the table below. What are the amounts of clays and silts in the soil?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Soil classification and characteristics

Soil classification is a method of categorizing soil based on its properties, types, and uses. The motive of soil classification is to arrange various types of soils and divide them into groups for various engineering and agricultural purposes. Soil classification is carried out by various agencies as per their purposes. From an engineering perspective, soil classification is done to find out the suitability of soil for various construction purposes like the construction of dams, foundations, highways, infrastructures, and so on. For engineering purposes, the soil is classified by the following systems:

Question

The soil passing the no. 200 sieve was used to conduct a hydrometer test. The results are shown in the table below. What are the amounts of clays and silts in the soil?

Time (min)
SHAWN
15
30
60
240
900
Hydrometer
reading
(gram/liter)
40.0
34.0
32.0
30.0
27.0
25.0
23.0
21.0
17.0
14.0
Temperature
(C)
22.5
22.5
22.0
22.0
22.0
21.5
21.5
21.5
20.0
19.0
Corrected
distance of
fall (cm)
8.90
9.21
9.96
10.29
10.96
11.17
11.45
11.96
12.45
13.10
Grain
size (mm)
0.0396
0.0285
0.0243
0.0214
0.0156
0.0116
0.0083
0.0060
0.0031
0.0017
% Finer by
weight
82.2
68.8
64.2
59.7
53.1
48.4
43.9
39.5
30.0
22.9

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